Following The Vision

On a related note, one of the most important parts of architecture is being able to explain your architecture/design to others so that they can follow the vision when you're not looking. If you don't do that you have at best a bottleneck, at worst an architecture that doesn't match what gets built. There are lots of ways to communicate architecture, and one of the keys is tailoring the content to the intended reader. Here's a list of ways to communicate architecture.